Laravel 5 - Log DB query

EventServiceProvider.php

public function boot(DispatcherContract $events)
{
    parent::boot($events);
    $path = storage_path().'/logs/query.log';

    \Event::listen('illuminate.query', function($sql, $bindings, $time) use($path) {
        // Uncomment this if you want to include bindings to queries
        //$sql = str_replace(array('%', '?'), array('%%', '%s'), $sql);
        //$sql = vsprintf($sql, $bindings);
        $time_now = date('Y-m-d H:i:s');
        $log = "$time_now : $sql ($time ms)".PHP_EOL;
        \File::append($path, $log);
    });